EP 1364506 A2 20031126 - MULTICARRIER TRANSMISSION SYSTEM WITH REDUCED COMPLEXITY CHANNEL RESPONSE ESTIMATION
Title (en)
MULTICARRIER TRANSMISSION SYSTEM WITH REDUCED COMPLEXITY CHANNEL RESPONSE ESTIMATION
Title (de)
MEHRTRÄGER-ÜBERTRAGUNGSSYSTEM MIT KANALANTWORTABSCHÄTZUNG MIT VERRINGERTER KOMPLEXITÄT
Title (fr)
SYSTEME D'EMISSION DE MULTI-PORTEUSES A ESTIMATION DE REPONSE DE CANAL A COMPLEXITE REDUITE
Publication
Application
Priority
- EP 02742449 A 20020116
- EP 01200687 A 20010222
- IB 0200128 W 20020116
Abstract (en)
[origin: WO02067526A2] Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The multicarrier signal comprises a plurality of subcarriers. The receiver (20) comprises a channel estimator (28) for estimating amplitudes of the subcarriers and for estimating time derivatives of the amplitudes. The receiver (20) further comprises an equalizer (24) for canceling intercarrier interference included in the received multicarrier signal in dependence on the estimated amplitudes and derivatives (29). The channel estimator (28) comprises a reduced complexity filter for deriving vectors of the estimated amplitudes and derivatives (29) from vectors of received symbols (23) and vectors of estimated symbols (27). The reduced complexity filter may be arranged for exploiting an amplitude correlation between the amplitudes of different subcarriers and/or for exploiting a derivative correlation between the derivatives of different subcarriers.
IPC 1-7
IPC 8 full level
H04B 1/7097 (2011.01); H04J 11/00 (2006.01); H04J 13/00 (2011.01); H04J 13/04 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP US)
H04L 25/0204 (2013.01 - EP US); H04L 25/022 (2013.01 - EP US); H04L 25/0236 (2013.01 - EP US); H04L 25/0244 (2013.01 - EP US); H04L 25/03821 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP US)
Citation (search report)
See references of WO 02067526A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02067526 A2 20020829; WO 02067526 A3 20021205; CN 1228951 C 20051123; CN 1462532 A 20031217; EP 1364506 A2 20031126; JP 2004519899 A 20040702; JP 4164364 B2 20081015; US 2002146078 A1 20021010; US 7230990 B2 20070612
DOCDB simple family (application)
IB 0200128 W 20020116; CN 02801353 A 20020116; EP 02742449 A 20020116; JP 2002566926 A 20020116; US 7893202 A 20020219